Re: @cantankerous swineherd
Perhaps it should have been specified as "Useless to the User". These types of apps are very useful - to the creator, the advertisers, and the publisher, but not so much the user.
And here's the thing, they "Innovate the truth" when describing it, so that it appears useful(to the user) and then fails to deliver. If they are willing to ignore privacy law (as stated in TFA) and the ethics of informed consent, then why would these shovel-ware "developers" pause at truth in advertising?